@chris5h Regarding your original error (E: unrecognized or invalid option --no-check-gpg) I've figured out it's due to the script fetching an old debootstrap version. Change this line in the installation script: DEBOOTSTRAP_VERSION=$(wget -q "$DEB_MIRROR/pool/main/d/debootstrap/?C=M;O=D" -O- | grep -o 'debootstrap[^"]*all.deb' | head -n1) To: DEBOOTSTby stilgar - Rescue System